Ah :) Having looked JavaMail sendMessage() I was wondering how it was uisng mail.from to set the From: address (as opposed to the Return-path:) I'm not really convinced that this is a good hack. The same thing can be easily avoided with no recompilation: 1) either edit a facelets template or 2) components.xml (n.b. you could easily use ant to do this) Or, if you are really don't like this, extend UIMessage and in encodeEnd use something like: if (findMimeMessage().getFrom() == null) { | mailFrom = getMailSession().getProperty("mail.from"); | findMimeMessage().setFrom(new InternetAddress(mailFrom)); | } | super.encodeEnd(contenxt); View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4010806#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...